Tag: density

  • Floatation–Density and Relative Density | Class 9

    Density We describe the lightness or heaviness of different substances by using the word density. The density of a substance is defined as mass of the substance per unit volume. That is The density of a given substance, under specified conditions remains the same. The therefore the density of a substance is one of the…

  • CBSE Chemistry :Matter – Nature and Behavior – Important Terms

    Matter – Nature and Behavior – Important Terms  Density: The mass per unit volume of a substance is called density. Kinetic Energy (K.E.): The energy possessed by a particle by virtue of its motion is called kinetic energy Kinetic energy of particles in solid state is very less. Pressure: The force per unit area is…